Challenge: Insertion at Tail
We'll tackle the insertion strategy in linked lists. However, you will be the one implementing it!
We'll cover the following
Problem Statement
Just as heads and tails are polar opposites, insertAtTail function is the opposite of insertion at head. However, it is just as simple.
We need to insert a new object at the end of the linked list. You can naturally guess that this newly added Node will point to null as it is at the tail.
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